Ruan Cheng, Zhang Yu, Lu Min, Ji Changyin, Sun Chun, Chen Xiongbin, Chen Hongda, Colvin Vicki L, Yu William W
State Key Laboratory on Integrated Optoelectronics and College of Electronic Science and Engineering, Jilin University, Changchun 130012, China.
State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China.
Nanomaterials (Basel). 2016 Jan 8;6(1):13. doi: 10.3390/nano6010013.
Quantum dot white light-emitting diodes (QD-WLEDs) were fabricated from green- and red-emitting AgInS₂/ZnS core/shell QDs coated on GaN LEDs. Their electroluminescence (EL) spectra were measured at different currents, ranging from 50 mA to 400 mA, and showed good color stability. The modulation bandwidth of previously prepared QD-WLEDs was confirmed to be much wider than that of YAG:Ce phosphor-based WLEDs. These results indicate that the AgInS₂/ZnS core/shell QDs are good color-converting materials for WLEDs and they are capable in visible light communication (VLC).
量子点白光发光二极管(QD-WLEDs)是由涂覆在氮化镓发光二极管上的绿色和红色发光的AgInS₂/ZnS核壳量子点制成的。在50 mA至400 mA的不同电流下测量了它们的电致发光(EL)光谱,结果显示出良好的颜色稳定性。已证实,先前制备的QD-WLEDs的调制带宽比基于YAG:Ce荧光粉的白光发光二极管的调制带宽宽得多。这些结果表明,AgInS₂/ZnS核壳量子点是用于白光发光二极管的良好颜色转换材料,并且它们可用于可见光通信(VLC)。